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(No Model.) 3 Sheets-Sheet 2. A. B. SMITH.

BLEGTRIG SI'O'GK INDICATOR. Patented July 8,1884.

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(No Model.) 3 Sheets-Sheet 3.

A. B. SMITH.

ELEGTRI'G STOCK INDICATOR. N0. 301 763. Patented July 8, 1884.

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UNITED STATES ALBERT BUTTLES SMITH, OF NEW FOURTI-IS TO JOHN WV. DEXTER, KNIGHT, ALL OF SAME PLACE.

ELECTRlC STO YORK, N. Y., ASSIGNOR- OF THREE- E'DVVARD DEXTER, AND ERASTUS G.

CK-INDVICATOR.

SPECIFICATION forming part Of Letters Patent No. 301,763, dated July 8, 188 1.

Application tiled February :3, 18 84. (No model.)

To all whom it may concern..-

Be it known that l, A. BUTTLES SMITH, a citizen of the United States, residing in the city, county, and State of New York, have in- .vcnted a new and useful Stock-Indicator, of

or indicator of the market prices, differing 1naterially from the indicators now in use. \V hat is needed by the brokers and others is an indicator having large plain figures, which can be so placedin any office that the different changes of the market may be seen ataglancc by all the occupants of the ofiice and read. off without dificulty. The present stock indicators or tickers print the prices, but in such small 'type that it is often hard to read the same, and. it is almost impossible for more than three persons to watch the changes of the market at the" same time, whiohis matter of great inconvenience to the brokers, as well as their customers. I believe I have perfected an electric indicator which will supply this demand.

My invention will be fully understood from the following description, claims, and accompanying drawings.

.In the accompanying drawings, Figure l is a perspective view of my indicator iii-connection with the operating-switches. Fig. 2 is a view, partly in elevation and partly in section, of the indicator, exposing the principal parts to view. Fig. 3 is a vertical section through said principalparts. Fig. 4 is a part top view and part horizontal section of the magnets and armatnres used in my indicator. Fig. 5 is a topview of the operating-disk of one of the two upper indicator-drums, the drum and its support being shown in section. Fig. 6 is a detailhorizontal section of one of the drums and its support and a top view of one of their releasing-disks. Fig. 7 is a perspective view of the lower indicating-drum and the release In cities and operating disks of the indicator-drum next above,.illustrating the operation of the middle indicator-drum by the lower indicator-drum Fig.8 is a perspective View of the same, illustrating the position of the several parts after one operation of the middle drum has taken place. Fig. 9 is a detail view of the prime motor of the apparatus. Fig. 10 is atop view 0521 regulatingdisk of the lower indicatordrum and certain adjuncts thereof. Fig. 11 is a sectional detail view of the regulating mechanism of the lower indicator-drum, and Fig. 12 is a perspective view of the regulating and reversin g mechanism.

A represents a suitable housing for two magnets, 13 C; and D E F are three indicating revolving drums, with numerical figures, as shown, marked or placed upon their periphewhich is closed at top and open at bottom, and provided with ya transparent portion, Z, as shown.

G H are two operating and controlling switches. The parts 13 O and D E F, with their housings and other mechanism, hereinafter described, constitute my stoclzindicator proper and the same when placed in a main or central officc is provided with the switches, but when used in another place or branch of lice, which is connected with the circuit-wires w e by ,suitable means, is used without switches in such oiiice or place.

The switches G and H are each connected with a separate battery, and, by means of conducting-wires and binding-screws, have com- The switch G is connected with the magnet B b of it being fastened to an arm, I), hung in the usual way opposite the magnet and extending through the top of the housing A, and there provided with a pallet-head, If. This head I) has two pallets, b I), between which a triangularly-toothed wheel, I, is provided on a horizontal shaft, 1'. The vibrations of the armature b, caused by the alternate action of the charged magnets andof a tension-spring, 6 which moves the released armature back to its normal position, move the wheel I are-urcthrough the aid of a weighted or drop lever.

rice, and covered by an opaque housing, L,-

by well known ordinary means, the armature munication with the magnets in the housing.

with its shaft 6. The shaft 2', which is suitably hung to the stands a a on the housing A, is provided with bevel-wheels t 6 permanently fixed to the shafti and made to alternately gear into 'a bevel-wheel, J, loosely fitted to a central upright extension, cf, of the housing A. This alternate gearing of the bevelwheels 13 i into the wheel J is effected by shipping the shaft 2' longitudinally by means of the other magnet O, as will be seen. The shaft 6 is provided with an annular groove, 4?, in which the forked head 0, at the upper end of an armature-arm, c, is located, and as the armature c is alternately attracted by the charged magnet O or released, and by a ten sion-spring, c moved back to its normal position, the shaft t is moved either to its extreme left or right position, and accordingly the wheel 1" or the wheel i? will be in gear with the wheel J. The bevel-wheels t" and i serve for revolvingthe drums accordingly as the shaft t may have been shifted from right to left,or vice versa. The bevel-wheel i moves the drum or drums in one direction, while the wheel i drives the same in an opposite direction, in the manner hereinafter fully explained. The extension at of the housing is provided with a rigidly-fixed central shaft, K, firmly screwedinto it, and by this shaft the indicatordrums and their operating mechanisms are supported. The wheel J is provided with a disk, having eightnotches, j,in the rim, and eight vertical pins, j", between said notches. It is also provided with a tubular extension, 9' to the upper end of which thejlower drum, D,

is fastened, and which revolves around the shaftK. The drumD is marked at eight equidistant places with the fractions 1%, t, 1-, i, %,anda blank space, d, between f; and t. As the pallet-head b oscillates, it moves the angularly-toothed wheel I around, and, by means of the wheel 1" J or i J, revolves the drum D either right or left, and thus exhibits one after another of the fractions or the blank at a given point.

In order to prevent mistakes in the reading off of the true exhibit, the drum is surrounded by an opaque cylinder, L, having one transparent portion, Z, for the exposure of the exhibit. I make this cylinderLand transparent space high enough to serve the same purpose for the other two drums, E F, and so that their combined exhibits shall stand in the same vertical line, and can thus be easily read. The housing L is high and large enough to inclose the indicator mechanism without bearing upon any portion of the same; and its lower circular edge fits within a circular offset, a, of the cylindrical stand A mounted upon the main housing A, as shownin Fig. 1. This housing L may be confined from turning by frictional bind between it and the offset, or by any suitable-catch or fastening device. It is intended that this housing L shall pass down over the indicator mechanism in the same manner as the glasscover of a clock is applied, As the blank space (I of the drum D arrives at the transparent portion Z of the opaque cylinder L, the middle dr"um, E,which exhibits the units, is moved either to the right or left, in order to indicate the addition or subtraction of one unit. For this purpose the top portion of the drum D is provided with a drop-lever, M, which bears upon the rim of a stationary disk, N, on the shaft K, and said drop-lever travels around the same with the drum.

Opposite the transparent portion 1 in the cylinder L the disk N is provided with a depression, n, Figs. 7 and 8, which joins the rim of the disk by means of two slopes, n a which lead the drop-lever M without difficulty in and out of the depression a. Inentering said notch a the lever M enters one of the equidistant notches o in the rim of a disk, 0, suitably united to the middle drum, E,and thus it carries the disk 0 and drum E along until it becomes disengaged from the notch 0 by passing over one of the said slopes a or if, and occupying its normal position on the rim of disk N. Thelength of the notch n, together with the slopes a of, amounts to one-tenth the periphery of the disk N, and hence every movement thus transmitted to the drum E amounts to one-tenth of a revolution; and as the drum is provided at ten equidistant places with the numbers 1, 2, 3, 4, 5, 6, 7, 8, 9, 0, it will with every movement exhibit the following or preceding number at the transparent portion Z of the cylinder L, such movement taking place at every revolution of the drum D'. The'drum F is marked in the same manner as'the drum E, except that in place of the zero (0) there is a blank space. The top portion of the drum E is provided with a drop-lever, M, which bears upon the rim of a stationary disk N, with a notch, 42, and slopes n at opposite the portion 1, and by this means enters one of the notches 0 of a disk, 0, united to the drum F, and thus effects a movement similar to that of the drum E, heretofore described, Accidental displacement of the two upper drums is prevented by providing the disk 0 with a wheel, 0, having ten triangular teeth, and providing the disk N with a spring-pawl, 12. which gears into the said wheel, and thus holds it and the drum attached to it in place, but is yielding enough. not to arrest the operation of the drop-lever M. As the movements of the lower'drum, D, must be positive in order to be correct, and as they must be very swift in order to expedite the display of messages of the varying quotations of the market, I have'provided a means whereby the pallet-head b can be very rapidly operated without endangering the correctness of the messages from false motion or slippage. This means consists in a drop-lever, P, a pawl, Q, and a release-bar, R, as will be explained. The drop-lever P is suitably hung to the housing A, and has an upright arm, p, standing near the rim of the disk j, and a horizontal arm, 19, resting upon the detent qof the-pawl Q, which pawl Q has a curved head, q',standing in range of the pinsj of the disk j, andin a line diametrically opposite the drop-lever 1?.

Both the drop-lever l? and the. pawl Q are so weighted that their upright portions bear towvard the disk j, and in consequence thereof the pins j while revolving with the disk 7', will push the pawl Q outward, so that the detent q becomes disconnected from the arm p of the drop-lever P, whereupon the arm 1) is swung toward the rim of the dislc j and enters the next notch j ol. the same, and thereby checks the motion of the disk 7' and the drums ,D E F, and the-pallethead b may now be oper-ated withouteffect upon the said drums. If, therefore, any indicator of the circuit should fail, by reason of some accident, to show the required number simultaneousl y with therest of the indicators of the circuit, the operation of the pallethead if continues until those not operating perfectly are stopped by their respective tlrop'levers 1?. As it is desirable to move the pallethead If more rapidly than could be done by hand-with an ordinary switch or operators key, I have devised a novel meet the are S and the switch-arm T by means of conductingwires was and binding-screws 2 in a suitable manner with operating-batteries 3/ and the coils of the magnet 13, and thus by one movement of the switch-arm T from one check s'to the other, produce. a number of oscillations of the pallet-head 1) sufficient to move the drum D one-eighth of a revolution; or, in other words, one full stroke of the switch-arm T will effect one change in the exhibition of fractions of the, drum D. When the switch-arm T is not, operated, the current between the switch G and magnet B ought to be cut off; and in order to enable the operator to do this without failure, the nonconducting stripes and checks 8 are so arranged that the conducting spring brush t of the said switch-arm rests upon one of the strips 8 when the switch-arm is in contact with either of the checks 8'; If the drum D is to be moved again either forward or backward, the arm p of the drop'lever P must be removed from the notch 3" it occupies. This is accomplished by means ot the other magnet, G, and switch H. The switch H consists of an insulating conductingarc, S, and an.insulated concentric switch-arm, T, both suitably connected by means of binding-screws 3/ and conducting wires .2 z with a battery, 2*, and .the magnet O. The are S is provided with non-con ducting strips 8, (three being asufficient num- 4 ment of the arm 0 the cam r is passed under I the arm p, whereby said arm p is lifted above the detent g of the pawl Q, (see Fig. 12,) and placed on top of'the same, thereby releasing the disk j. When the movement of the disk jis to e reversed, the magnet C is charged, and remains so until the drop-lever 1? stops the disk j: then, if the backward motion is to continue, the disk j will be released by momentaril y cutting ofl'the current from the magnet 0, thereby releasing the armature c and causing the cum 1* of the release to move under the arm 1) from the opposite direction and lift the same, thus releasing the disk j in'the manner above described. It will be seen that by either closing or opening the circuit of the magnet G, the disk 3 is released and rendered ready for further movement, not exceeding one-eighth of a revolution, and at the same time the movement of said disk is reversed if the circuit is not immediately reclosed or re opened. Therefore, a quick reciprocating movement of the switch-arm T will release the diskj almost in an instant, and the movements of the pallet-head b may go on uninten rupted, if so required by the nature of the messages or state of the market. Switches G and H are used in the central Ofi'lCE, or where the quotations of the stools market are received by the operator, who holds the insulated handle t of a switch-arm .in. each hand. One motion of the arm T from one check to the other will effect achange of one-eighth in the exhibits of all the indicators connected with the switch G in the one hand of the operator, while theother hand, by means of the switch H, controls either the stoppage or the continuation or reversion of the movements created by the switch G.

The described indicator, with the switches, is the one used in the central oflice, and by means of circuit-wires x and c, Fig. 1, it is The operator in the central office is neces sarily supplied with one of the indicators, in order that he may watch the results of his op eration and avoid mistakes. What I claim as my invention, and desire to secure by Letters Patent, is-

1. An electrically-operated indicator forinsubstantially as described.

2. An electrically-operatedindicator for indicating the market prices of stocks and pro duce,comprising,in combination, .a main operating-drum with numbers on its periphery, a mechanism, as described, for revolving the drum forward or backward, a reversing mechanism, as described, by which the-drum-moving mechanism is made to move the drum either forward or backward, drum E and connecting mechanism, as shown, a mechanism for effectually controlling the drum E, a prime operating-magnet, and a reversingmagnet, substantially as described.

3. The combination of the magnet B, armature-arm I), having pallet-head b, the sliding shaft 2', having wheel I, and reverse bevelwheels 11 f and annular groove 6, the drumwheel J, the magnet G, and armature-arm 0, having forked head a, substantially as and for the purpose described.

4. The combination of the rotating and sliding shaft 1, having reverse bevel-wheels iz', the drum-wheel J, having disk j,with notches j and pins j the drop-lever 1?, having arms 12 p, the pawl Q, having head g and detent q, and the armature-arm 0, having release-bar R and cam r, substantially as and for the purpose described.

5. The combination of the revolving drum D, having a drop-lever, M, the stationarydisk N, having doubly-sloped depression a, and the revolving disk 0, having exhibit-drum E and notches 0, substantially as and for the purpose described.

6. The combination of the electrically-op erated exhibit-drums D and E, a prime operatingmagnet, a secondary or reversing magnet provided with suitable switches, and suitable intermediate connecting and controlling mechanism, as described, between said drums, whereby said drum D can be moved either forward or backward separately from.

and also with the drum E, substantially as described.

7. The combination of the electrically op erated exhibit-drums D E F, a prime operat ing-magnet, a secondary or reversing magnet provided with suitable switches and suitable intermediate connecting and controlling mechanism, as described, between said drums, whereby said drum D can be moved either forward or backward separately, and also with the drums E and F, substantially as described.-

8. The combination of the drop-lever I, having arms 1) p, the pawl Q, having head q,

and detent q, and armature-arm 0, having release-bar R and cam 1:, with the forward and backward revolving drum disk j, having notches j and pins j and-with suitable electrically-operated reversinggear, substantially as described.

9. The combination of the revolving eX- hibit-drums E and IF, drop-levers M M, stationary disks N N, having, respectively, double-sloped depressions 'n n, and revolving disks 0 0, having, respectively, notches 0 0, and revolving exhibit-drum D, substantially as and for the purpose described.

10. The combination of the revolving-disk O, a revolving exhibit-drum, triangularlytoothed controlling-wheel 0, having back and forward movements, with the shaft K, and stationary disk N, having stationary doubleacting pawl a, substantially as described.

11. The switch G,consisting of the insulated conductor S, having strips 8 and .checks 8, and an insulated arm, T, having a brush, it, in combination with a switch, H, having an insulated conductor, S, strips 8, arm T, and brush t, a back and forward revolving exhibit-drum, D, on a stationary shaft, a prime operatingmagnet, B, a secondary or reversing magnet, O, and suitable connecting-wires of two electric batteries, whereby'the respective currents can be opened and closed, so as to cause the movements of the reversing-gear to be reversed by one magnet, and the drum D to be moved forward orbackward, as required, by the other, and the indicator can be controlled until the proper exhibits are produced, substantially as described.

ALBERT BUTTLES SMITH.

Witnesses:

ALoNzo Fos'rER, HENRY A. WILSON. 

